Ответ:

  1. Many young adults still live with their parents because they can’t buy a house.
  2. When you’re two years old, you’re at a toddler stage.
  3. Everyone in the family is very happy when a baby arrives.
  4. When you’re a senior citizen, you usually don’t work and you often have grandchildren.
  5. Middle-aged people aren’t young but they aren’t old, either.
  6. When you’re a teenager, it’s often a difficult time. You aren’t a child, but you aren’t an adult either.